Five separate bomb threats forced the Fullerton Police Department to lock down four schools and evacuate a hospital on Thursday.
The series of bomb threats began at about 1:25 p.m. when a caller claimed they planted explosives at Troy High School. As officers responded to the campus, the Fullerton Union High School received a similar threat about 24 minutes later.
Four minutes later, at 1:53 p.m., Sunny Hills High School received a bomb threat. As officers surveyed the situation at the three schools, Fern Drive Elementary School received another bomb threat at 2:20 p.m…